What is the low beam headlight bulb size for a 1991 GMC Typhoon?

The 1991 GMC Typhoon uses a H6054 LED bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 1991 GMC Typhoon?

The high beam bulb size for the 1991 GMC Typhoon is PC194 or 161.

Why are my 1991 GMC Typhoon headlights dim?

Dim headlights on a 1991 GMC Typhoon can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a H6054 LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 1991 GMC Typhoon fog light?

The 1991 GMC Typhoon uses a H3 LED bulb for the fog light position.

Is the 1991 GMC Typhoon single or dual beam?

The 1991 GMC Typhoon uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 1991 GMC Typhoon?

Yes, the 1991 GMC Typhoon comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H6054 LED LED conversion kit for the low beams.

Does the 1991 GMC Typhoon have fog lights?

Yes, the 1991 GMC Typhoon takes a H3 LED bulb for the fog light position.

How do I change the headlight on a 1991 GMC Typhoon?

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old H6054 LED bulb counter-clockwise to remove it, then insert the new bulb and reassemble. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 1991 GMC Typhoon?

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved H6054 LED LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

How much does it cost to replace 1991 GMC Typhoon headlights?

A pair of halogen H6054 LED bulbs costs $15 to $40, while LED conversion kits run $25 to $60 per pair. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

What is the difference between halogen and LED for a 1991 GMC Typhoon?

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the H6054 LED position are available as direct plug-and-play replacements.

Fitment Guaranteed for 1991 GMC Typhoon

What Size Bulbs Does a 1991 GMC Typhoon Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Easy (Plug and Play)

Est. Replacement Cost

$15 - $40 (Halogen) / $30+ (LED)

What Lighting System Does the 1991 GMC Typhoon Have?

The 1991 GMC Typhoon utilizes a refined lighting configuration featuring 11 distinct bulb positions. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate H6054 LED low beam and PC194 or 161 high beam bulbs for precise light distribution. This model belongs to the early years of the Typhoon's 1991-1993 production span.

Can You Put LED Bulbs in a 1991 GMC Typhoon?

For a GMC built for the road and trail, LED upgrades provide the high-contrast lighting needed for better obstacle detection. We recommend starting your upgrade with the H6054 LED low beams, as they see the most use. Adding a matching PC194 or 161 LED kit later will complete the look and ensure consistent lighting performance. Don't forget the H3 LED fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

1991 GMC Typhoon Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	H6054 LED	Buy H6054 LED →
High Beam	PC194 or 161	Buy PC194 or 161 →
Fog Light	H3 LED	Buy H3 LED →
Brake Light	PC194	Buy PC194 →
Side Marker	194 LED	Buy 194 LED →
Turn Signal Front	2057 LED	Buy 2057 LED →
Turn Signal Rear	2057 LED	Buy 2057 LED →
Reverse Light	1156	Buy 1156 →
License Plate	67 or 194	Buy 67 or 194 →
Parking Light	2057	Buy 2057 →
Trunk Light	LED Light	Buy LED Light →